How many sections of 2' flue liners are needed to line the chimney from its base to the top to build a single-wythe chimney for a 30'6" tall appliance chimney having an 8" x 8" flue lining?
What will be an ideal response?
15 1/4
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Which statement is true about displacement ventilation?
A) Air from the floor is prone to carrying dust. B) Mixing is enhanced resulting in even air temperatures. C) Supply air temperatures are lower than for overhead systems. D) Vertical airflow may have health benefits.
What is the load for 40 non-dwelling unit receptacles? (Assume that the load is not continuous.)
a. 5,400VA b. 6,750VA c. 7,000VA d. 7,200VA
What controls the heating elements in most electric furnaces?
A) Contactors B) Sequencers C) Thermistors D) Heat relays
This question requires you to refer to the tables located in NEC Article 430. What is the motor full load current (FLA) for a 2hp, 230V, single-phase motor?
A.10A B. 12A C. 15A D. No answer text provided